Street-sweeper.



C. JOHNSON.

STREET SWEEPER,

APPLICATION FILED MAY 13. W14.

25,251 0 Patented May 8, 1917.

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C. JOHNSON.

STREET SWEEPER.

APPLICATION FILED MAY 13. 1914.

Patented May 8, 1917.

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STREET SWEEPER.

APPLiCATlON FILED MAY 13, 1914.

Patented May 8, 1917.

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C. JOHNSON.

STREET SWEEPER.

APPLICATION FILED MAY 13. 1914.

Paten ced May8,1917.

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CHARLES JOHNSON, OF SEASIDE, OREGON.

STREET-SWEEPER.

Specification of Letters Patent.

Patented May 9, 1917.

Application filed May 13, 1914. Serial No. 838,235.

To all whom it may concern:

Be it known that-I, CHARLES JOHNSON, a citizen of the United States, residing at Seaside, in the county of Clatsop and State of Oregon, have invented certain new and useful Improvements in Street-Sweepers, of which the following is a specification.

The invention relates to improvements in street sweepers generally, more particularly to that class which may be termed self-loadm The invention has for its object to promote simplicity of construction and efliciency of operation.

A further object is to provide for the delivery of the sweepings or refuse material elevated by the conveyer from the streetsurface, laterally into the tilting receptacle from which receptacle said refuse material is automatically dumped or removed by the tilting of said receptacle.

lVith the foregoing and other objects in view, the invention consists of the combination and arrangement of parts hereinafter fully described and particularly pointed out in the claim and illustrated in the accompanying drawings which form a part of this specification, and in which Figure 1 is a side elevation of my improved street sweeper;

Fig. 2 is a similar view of the same, with some of the parts broken away and some shown in section, and with the conveyer shown raised and in its inoperative position. The refuse receptacle is shown in its discharging or dumped position in dotted lines;

Fig. 3 is an enlarged end elevation;

Fig. l is a section through the conveyer and hopper;

Fig. 5 is a fragmentary detail of the ratchet mechanism associated with the vehicle wheels;

Fig. 6 is a fragmentary side view of the brush and the conveyer drive;

Fig. 7 is a perspective of a portion of the conveyer bed and the hopper; and

Fig. 8 is a section of the upper end of the conveyer bed, showing its pivotal support to the main frame of the device.

Fig. 9 represents sundry cross-sectional views of the conveyer-shovels, each differing somewhat from the other in immaterial details.

Fig. 10 is a'fragmental plan view of the conveyer on an enlarged scale.

Like reference characters indicate corresponding parts throughout the several views.

My street sweeper comprises a substantially rectangular horizontally disposed frame 1, which is suitably supported upon an axle 2, borne by carrying wheels 3, and caster wheel 3 A. refuse receptacle or box 1 is pivotally supported, off-center, as at 5, upon the frame 1, the rear end portion of the bottom of said receptacle being held normally against the bottom edge of a tail gate 6, as seen particularly in Fig. 2, it may be, by means of say an ordinary latch or hook and keeper designated as 6 and 6 respectively, and suitably applied to said tailgate and receptacle bottom, respectively, as indicated in Figs. 1 and 2 from casual tilting action. The tail-gate 6 is adapted to close the rear-end of the refuse receptacle, or box 1, and, although shown hinged in position upon the machine frame, this manner of its attachment thereto is only incidental. To the frame 1 a vertical support 8 is rigidly secured, which is provided with an upstanding apertured stud 9, for a pivot 10 which carries one end of a conveyer 13, comprising a bed 11 in which shafts 12 and 12 are journaled, and which bed is also provided with a hopper 1%, which directs the refuse into the box 4. The opposite end of the conveyer bed 11 carries a pan 14: provided with a supporting caster 15, and to the same end of said bed are secured brackets 16, which carry a shaft 17 which supports a rotary brush 18. One end of said shaft 17 is provided with a gear 19, which is con nected by a chain 20 to a large gear 21 carried by the conveyer shaft 12 A guard 22 for the brush 18 is carried by the brackets 16.

The wheels 3 are journaled upon their axle 2 and to spokes 23 of said wheels, dogs 24- are pivoted which are adapted for engagement with a ratchet wheel 25 keyed upon the wheel axle 2. The ratchet wheel 25 is keyed to a gear 27 of greater diameter, which gear 2? is in mesh with a gear 28 terminally carried by a shaft 29 journaled in the standards 8, which shaft 29 also carries a gear 30 at its end in mesh with a gear 31 terminally carried by the conveyer shaft 12, and which gear 31 is adapted to drive said shaft 12 and thus the conveyer 13 and the brush l8. Pivoted in supports 32 carried by the frame 1, as at 3 1, is a lever 33 connected at one end to the conveyer 13, the opposite or free end of said lever being adapted to engage a hook 35, secured to the seat 36.

From the foregoing, it will be apparent that when the machine is in motion, the Wheel 3 will drive the ratchet wheel 25, thus setting the train of gears 27, 28, and 31 in motion, which will communicate motion to the conveyer 13 and rotate the brush 18. It is also apparent that when the machine is moved rearwardly, the dogs 24 will not propel, as in moving the machine forwardly, and consequently the machine will be inoperative. The rotary action 'of the brush 18 will sweep the dirt or refuse onto the pan 14, whence it will be taken by the shovels 13 of the conveyer 13 and be carried thereby to the opening in the floor of the conveyer adjacent the upper end thereof, whence the dirt gravitates into the hopper 1 F, thence being deposited in the refuse receptacle 4. To render the conveyer inoperative, the lever 33 is moved into engagement with the hook 35,. as in the position shown in dotted lines in Fig. 2 of the drawings, thus moving the conveyer upon its pivot 10 and raising the shaft 12 of the conveyer into such a position that the gear 31 will be thrown out of mesh with the gear 30. Upon the refuse receptacle becoming filled with the elevated sweepings the tail-gate 6 is unlatched, when the refuse receptacle will accordingly tilt upon its pivot and caused to the ground.

I claim A machine of the type described, including an inclined conveyer pivotally supported at its upper end, said conveyer comprising a bed, the floor of said bed having an opening therein, said conveyer bed having a pan at its lower end and having journaled at said end, the driving shaft of the conveyer proper, said conveyer bed having intermediate of its ends an inclined hopper secured thereto at its underside and in such manner as to receive the sweepings or refuse through the opening in the floor of said conveyer bed, means providing for the adjustment of said conveyer upon its pivot, into elevated position, or lowering it into depressed position, a refuse receptacle tiltingly supported laterally of the conveyer, said inclined hopper extending transversely of, and below said conveyer and delivering laterally thereof, into said refuse receptacle.

In testimony that I claim the foregoing as my own I have hereto affiXed my signature in the presence of two subscribing witnesses.

CHARLES JOHNSON. Witnesses J. W. Rnnvns, F. S. GODFREY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

